Graphene_final2.pdf (328.89 kB)
Ground State Properties of Graphene In Hartree-Fock Theory
journal contribution
posted on 2013-12-03, 00:00 authored by Christian Hainzl, Mathieu Lewin, Christof SparberWe study the Hartree-Fock approximation of graphene in in -
nite volume, with instantaneous Coulomb interactions. First we construct its
translation-invariant ground state and we recover the well-known fact that, due
to the exchange term, the e ective Fermi velocity is logarithmically divergent
at zero momentum. In a second step we prove the existence of a ground state
in the presence of local defects and we discuss some properties of the linear
response to an external electric eld. All our results are non perturbative.
History
Publisher Statement
This is a copy of an article published in the Journal of Mathematical Physics © 2012 American Institute of Physics. The final publication is available at http://jmp.aip.org/Publisher
American Institute of PhysicsLanguage
- en_US